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Topic Review (Newest First)

11-08-2012 06:29 AM

felixthecat

Quote:

Originally Posted by karmakc

I got the street CFM and if mine has broken in - in the last year that I've had it in - it shows no signs of reducing vibrations, especially with the A/C on.

As an aside, my rear license plate rattles at the same frequency so at low rpms, hilarity ensues for me or sometimes I'm really pissed off. Depends on the traffic.Your bumping w/ the jams, huh LOL

Good luck - at least you'll enjoy the lack of play between shifts :)

I'd tighten down the plate frame & use a plastic one.

11-08-2012 03:24 AM

karmakc

Quote:

Originally Posted by PowerFocer

I have the "street" mount from CFM, and I've decided just to stick with it till it breaks in. Thanks for all the info guys.

I got the street CFM and if mine has broken in - in the last year that I've had it in - it shows no signs of reducing vibrations, especially with the A/C on.

As an aside, my rear license plate rattles at the same frequency so at low rpms, hilarity ensues for me or sometimes I'm really pissed off. Depends on the traffic.

Good luck - at least you'll enjoy the lack of play between shifts :)

08-28-2012 02:26 PM

PowerFocer

I have the "street" mount from CFM, and I've decided just to stick with it till it breaks in. Thanks for all the info guys.

08-22-2012 06:18 PM

Sniper Focus

Quote:

Originally Posted by PowerFocer

So the bushings will break in?

Mine broke in after three months of driving. The worst vibes after it was broken in were from the steering column with a/c at idle.

Massive's bushings have the about same durometer (hardness) as CFM's race mount

ES bushings are the same as a CFM street mount, if I would've known about durometers I would've went with ES bushings the first time.

08-22-2012 05:10 PM

felixthecat

Quote:

Originally Posted by sporadic

Install solid motor mounts for a day, then switch back to the poly.

Quote:

Originally Posted by justalilslow

^Agreed run full solid for a year and a half, then drive some ones with full polys or even stock.

You will never complain about excess vibrations again. But you will miss the amazing response and the massage chair.

Ha Ha ^^^^ Just think if you had a 23 w/ a set of cams & no balance shafts w/ the a/c on at an idle= No issue's w/ a poly dogbone.

08-22-2012 02:41 PM

rambleon84

I dont even notice the vibrations from my VF dogbone...completely used to any additional vibrations it might have added.

I know CFM makes theirs with two different bushings; street and race. Perhaps their street is softer and might be a compromise for you? Although i dont know anyone that has gone from VF to CFM or vice-versa.

08-22-2012 07:42 AM

justalilslow

^Agreed run full solid for a year and a half, then drive some ones with full polys or even stock.

You will never complain about excess vibrations again. But you will miss the amazing response and the massage chair.

08-22-2012 06:53 AM

sutyak

Install solid motor mounts for a day, then switch back to the poly.

08-21-2012 09:42 PM

PowerFocer

So the bushings will break in?

08-17-2012 08:56 PM

felixthecat

Quote:

Originally Posted by PowerFocer

Sorry if this is the wrong subforum. I installed massive's poly dogbone mount a few weeks ago and love the performance gain from it, however, on hot days with the A/C on the vibrations from it are freaking obnoxious. Feels like . I originally thought it was worse than it should have been so I took it to the dealer and they said that my other two motor mounts were gone (How? I have no idea. Its got 33K miles on it.) But fine, whatever. They replaced those and the vibration didn't change whatsoever. When its cool outside or when the A/C is off its not to bad; but when its 110+ outside and I have the A/C kicked up its like riding a coke'd out bull. Ok, maybe a bit exagurated, but you get the point. Anywho, I'd like to keep the mount in so I was wondering if there is any way to lessen the vibes from it while still retaining most/all of the performance gain from it. I was thinking something like a foam washer between the bolt and the K member on the subframe end. IDK, any ideas would be great. I don't like forced bowel movement just so I can enjoy some air conditiong.

Thanks in advance,
PowerFocer

EDIT: "Poly mount in title"

Heres a instantance that you can't have your cake & eat it too. Thats a small price for the gains you get. I have vf engineering dogbone w/o the balance shafts & yes it does have vibes at idle, but well worth it. The a/c should kick up the idle some thou. I'd leave it.

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